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From "Yiqun Lin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-11847) Enhance dfsadmin listOpenFiles command to list files blocking datanode decommissioning
Date Wed, 03 Jan 2018 07:29:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-11847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yiqun Lin updated HDFS-11847:
-----------------------------
       Resolution: Fixed
     Hadoop Flags: Reviewed
    Fix Version/s: 3.1.0
           Status: Resolved  (was: Patch Available)

Seems this JIRA can be resolved. Closed this.
Hi [~manojg], as I see this patch was committed, I have rebased the patch in HDFS-12878. It
would be nice to implement list files under given path as well. Please have a look when you
get a chance.

> Enhance dfsadmin listOpenFiles command to list files blocking datanode decommissioning
> --------------------------------------------------------------------------------------
>
>                 Key: HDFS-11847
>                 URL: https://issues.apache.org/jira/browse/HDFS-11847
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs
>    Affects Versions: 3.0.0-alpha1
>            Reporter: Manoj Govindassamy
>            Assignee: Manoj Govindassamy
>             Fix For: 3.1.0
>
>         Attachments: HDFS-11847.01.patch, HDFS-11847.02.patch, HDFS-11847.03.patch, HDFS-11847.04.patch,
HDFS-11847.05.patch
>
>
> HDFS-10480 adds {{listOpenFiles}} option is to {{dfsadmin}} command to list all the open
files in the system.
> Additionally, it would be very useful to only list open files that are blocking the DataNode
decommissioning. With thousand+ node clusters, where there might be machines added and removed
regularly for maintenance, any option to monitor and debug decommissioning status is very
helpful. Proposal here is to add suboptions to {{listOpenFiles}} for the above case.



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